<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script>
			alert(Math.floor(5.8));
			alert(Math.random()*9000+1000)
			alert(Math.floor(Math.random()*9000+1000))
		</script>
	</body>
</html>
